Spraying device for aluminum plastic furniture processing

Abstract

The utility model discloses a spraying device for aluminum plastic furniture processing, and relates to the technical field of furniture processing. The aluminum-plastic furniture part spraying device comprises a plurality of first supports, and further comprises a spraying part which is installed on the first supports and used for spraying aluminum-plastic furniture parts. The number of the fixing parts is multiple, and the multiple fixing parts are all arranged in the spraying part; the conveying part is located in the spraying part and used for driving the multiple fixing parts to move. Wherein the aluminum-plastic furniture parts are mounted on the plurality of fixing parts, and then the conveying part is started, so that the aluminum-plastic furniture parts move in the spraying part. According to the spraying device for processing the aluminum-plastic furniture, the fixing part is arranged, so that the problems that in the using process of an existing spraying device for processing the aluminum-plastic furniture, aluminum-plastic furniture parts needing to be sprayed are inconvenient to fix, the aluminum-plastic furniture parts can shake and fall off in the spraying process, and the fallen parts can collide with the device and are damaged are solved.

Description

Technical Field

[0001] This utility model belongs to the field of furniture processing technology, and in particular relates to a spraying device for aluminum-plastic furniture processing. Background Technology

[0002] Aluminum-plastic composite (APC) furniture is widely used due to its combination of metal strength and plastic corrosion resistance. However, residual oil, dust, and other impurities on the surface during processing can affect coating adhesion and appearance quality. Traditional manual cleaning is inefficient, consumes a lot of water, and cannot meet the cleaning needs of complex structural components. Existing spray devices are mostly designed for general-purpose workpieces and have problems such as fixed spray angles, rough pressure adjustment, and inadequate wastewater treatment. They cannot accurately adapt to the characteristics of aluminum-plastic materials and the diverse cleaning scenarios of furniture components. Developing a dedicated device that can flexibly adjust spray parameters and improve cleaning efficiency and environmental performance is of great significance for optimizing the processing technology of aluminum-plastic furniture and ensuring product quality.

[0003] However, existing spraying devices for aluminum-plastic furniture processing are not convenient for fixing the aluminum-plastic furniture parts that need to be sprayed during use. During the spraying process, the aluminum-plastic furniture parts will shake and fall off, and the fallen parts will collide with the device, causing damage. Utility Model Content

[0004] The purpose of this utility model is to provide a spraying device for aluminum-plastic furniture processing. By setting a fixing part, it solves the problem that existing aluminum-plastic furniture spraying devices are not convenient to fix the aluminum-plastic furniture parts to be sprayed during use. During the spraying process, the aluminum-plastic furniture parts will shake and fall off, and the fallen parts will collide with the device and cause damage.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a spraying device for processing aluminum-plastic furniture, comprising several supports, and further comprising: a spraying section mounted on the supports for spraying aluminum-plastic furniture parts; several fixing sections disposed within the spraying section; and a transport section located within the spraying section for moving the fixing sections; wherein, the aluminum-plastic furniture parts are mounted on the fixing sections, the transport section is activated to move it within the spraying section, and then the spraying section is activated to spray the aluminum-plastic furniture parts.

[0007] Furthermore, the spray unit includes two ladders located on the left side of several supports, with the right sides of the two ladders fixedly connected to the left sides of the two supports located on the left. Several boxes are fixedly connected inside the supports, and two connecting pipes are provided on the top of each box. The connecting pipes extend into the boxes, and connecting pipes are fixedly connected to the top of the supports. The side of each connecting pipe near the connecting pipe is connected to the connecting pipe. Spray heads are connected to the bottom of each connecting pipe. The boxes are fixed together by welding and are arranged in an array. Each box has an opening on its top for accommodating the passage of the fixed unit.

[0008] Furthermore, the fixing part includes a sliding hook assembly disposed within the spray section for hooking aluminum-plastic furniture parts; and an anti-detachment assembly located within the sliding hook assembly for preventing aluminum-plastic furniture parts from falling off the sliding hook assembly; wherein, when it is necessary to fix the aluminum-plastic furniture parts, the fixing part is unfolded, and then the aluminum-plastic furniture parts are hooked by the sliding hook assembly, and finally locked by the anti-detachment assembly.

[0009] Furthermore, the transport unit includes a limiting component installed inside the spray unit for limiting movement; and a power component disposed inside the limiting component for providing power; wherein, under the restriction of the limiting component, activating the power component will drive several fixed parts to move within several boxes.

[0010] Furthermore, the sliding hook assembly includes a connecting rod disposed within the spray section, a connecting block fixedly connected to the bottom of the connecting rod, a first sliding groove formed at the bottom of the connecting block, an elastic element disposed within the first sliding groove, a second sliding block slidably connected to the inner wall of the first sliding groove, the bottom of the second sliding block extending beyond the connecting block, and a hook hinged to the bottom of the second sliding block; wherein, when it is necessary to fix aluminum-plastic furniture parts, the second sliding block is pulled out, allowing it to slide within the first sliding groove, and when the second sliding block slides out, it increases the degree of freedom of the hook, making it adaptable to different aluminum-plastic furniture parts.

[0011] Furthermore, the anti-detachment component includes a limiting groove one opened on the right side of the connecting rod, a limiting hook rotatably connected to the top of the storage hook, and a limiting groove two opened in the connecting block; wherein, the width of the limiting groove one is the same as the diameter of the limiting hook, and the diameter of the limiting groove two is the same as the diameter of the limiting hook and the diameter of the storage hook.

[0012] Furthermore, the limiting component includes a second bracket fixedly connected to the inner wall of several first brackets, a third bracket fixedly connected to the inner wall of the second bracket, and a limiting component provided inside the second bracket; wherein, the second bracket is a straight groove block, and the second bracket is located above several boxes.

[0013] Furthermore, the power assembly includes a motor fixedly connected to the top of the bracket three. The output shaft of the motor is fixedly connected to a rotating shaft via a coupling. The rotating shaft passes through the bracket three, and the outer wall of the rotating shaft is rotatably connected to the bracket three. A transmission component is provided inside the bracket two. When the motor is started, its output shaft will drive the transmission component through the rotating shaft, and the operation of the transmission component is restricted by a limiting component.

[0014] Furthermore, the elastic element includes a slider 1 slidably connected to the inner wall of the slide groove 1, and a spring is fixedly connected to the top of the slider 1, and the top of the spring is fixedly connected to the slide groove 1; wherein, when the slider 2 presses against the slider 1, the spring will undergo elastic deformation and generate elastic force.

[0015] Furthermore, the limiting component includes a second sliding groove formed within the second bracket. A connecting groove is formed on the inner wall of the second sliding groove near the third bracket. The left side of the connecting groove extends to the bottom of the third bracket. The bottom inner wall of the second sliding groove is also formed by the connecting groove, and the bottom of the connecting groove extends to the outside of the second bracket. The transmission component includes a sprocket fixedly connected to the outer wall of a rotating shaft. The rotating shaft passes through the sprocket. A chain is slidably connected to the inner wall of the second sliding groove. The sprocket meshes with the chain, and the bottom of the chain is fixedly connected to a connecting rod. The first connecting groove is an arc-shaped groove to ensure normal meshing between the sprocket and the chain, while the second connecting groove is a straight groove to ensure normal connection between the connecting rod and the chain.

[0016] This utility model has the following beneficial effects:

[0017] 1. By setting a fixing part, when in use, pull out the hook. At this time, the second slider will be pulled out along with the hook. Then, pass the hook through the hole on the aluminum-plastic furniture part that needs to be sprayed. After passing through, reset the hook. At this time, the top of the second slider will contact the first slider. Then, the limiting hook on the hook can be engaged in the limiting groove. Then, push the hook upward to move the second slider and the limiting hook upward. At this time, the spring will generate elastic force under the action of the first slider. When the spring is fully compressed, the limiting hook can be rotated so that the hook at the top is aligned with the limiting groove. Then, release the hook and let it slide downward under the action of the spring. At this time, the top of the limiting hook will be engaged in the limiting groove, thus completing the fixing. This hook can hold the aluminum-plastic furniture part that needs to be sprayed, preventing it from falling off the device due to shaking during the spraying process, preventing it from colliding with the device and causing damage, thereby reducing economic losses.

[0018] 2. By setting up a transport section, once fixed, the motor can be started to rotate its output shaft. When the motor's output shaft rotates, it drives the sprocket to rotate through the rotating shaft. When the sprocket rotates, it drives the chain to slide within the slide groove two. When the slide groove two rotates, it drives the fixed part to move around the contour of the bracket two, thereby moving the aluminum-plastic furniture parts. The aluminum-plastic furniture parts will move within the box, enabling the transport of the fixed part and the aluminum-plastic furniture parts hooked on the fixed part. This allows them to move within the box and be fully sprayed, thus improving product quality.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the ladder of this utility model;

[0023] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0024] Figure 4 This is a partial cross-sectional view of the limiting component of this utility model;

[0025] Figure 5 This is a partial cross-sectional view of the sliding hook assembly of this utility model;

[0026] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram;

[0027] Figure 7 This is a schematic diagram of the overall structure of the anti-detachment component of this utility model;

[0028] Figure 8 This is a schematic diagram of the overall structure of the motor of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Spraying Unit; 101. Support 1; 102. Ladder; 103. Box; 104. Connecting Pipe 1; 105. Connecting Pipe 2; 106. Spray Head; 2. Fixing Unit; 21. Sliding Hook Assembly; 211. Connecting Rod; 212. Connecting Block; 213. Slide 1; 214. Sliding Block 1; 215. Spring; 216. Sliding Block 2; 217. Storage Hook; 22. Anti-detachment Assembly; 221. Limiting Groove 1; 222. Limiting Hook; 223. Limiting Groove 2; 3. Transport Unit; 31. Limiting Assembly; 311. Support 2; 312. Support 3; 313. Slide 2; 314. Connecting Groove 1; 315. Connecting Groove 2; 32. Power Assembly; 321. Motor; 322. Rotating Shaft; 323. Sprocket; 324. Chain. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-8 As shown, this utility model is a spraying device for processing aluminum-plastic furniture, including several supports 101, and further including: a spraying section 1, which is installed on the supports 101 and is used to spray aluminum-plastic furniture parts; a fixing section 2, which is provided in several places and is located inside the spraying section 1; and a transport section 3, which is located inside the spraying section 1 and is used to move the fixing sections 2. The aluminum-plastic furniture parts are installed on the fixing sections 2, then the transport section 3 is activated to move it within the spraying section 1, and then the spraying section 1 is activated to spray the aluminum-plastic furniture parts. The spraying section 1 includes two ladders 102 located on the left side of the supports 101, and the right sides of the two ladders 102 are respectively... The two brackets 101 located on the left side are fixedly connected to the left side. Several boxes 103 are fixedly connected inside the brackets 101. Two connecting pipes 104 are provided on the top of each box 103. The connecting pipes 104 extend into the boxes 103. Connecting pipes 2 105 are fixedly connected to the top of the brackets 101. The side of each connecting pipe 104 near the connecting pipe 2 105 is connected to the connecting pipe 2 105. Spray heads 106 are connected to the bottom of each connecting pipe 104. The boxes 103 are fixed together by welding and are arranged in an array. The top of each box 103 is provided with a receiving opening to accommodate the passage of the fixing part 2.

[0033] The fixing part 2 includes a sliding hook assembly 21, which is disposed within the spray part 1 and used to hook aluminum-plastic furniture parts; and an anti-detachment assembly 22, which is located within the sliding hook assembly 21 and used to prevent aluminum-plastic furniture parts from falling off the sliding hook assembly 21. When it is necessary to fix the aluminum-plastic furniture parts, the fixing part 2 is unfolded, then the sliding hook assembly 21 hooks the aluminum-plastic furniture parts, and finally the anti-detachment assembly 22 locks them in place. The sliding hook assembly 21 includes a connecting rod 211 disposed within the spray part 1. A connecting block 212 is fixedly connected to the bottom of the connecting rod 211. A first sliding groove 213 is formed at the bottom of the connecting block 212. An elastic element is installed within the first sliding groove 213. A second slider 216 is slidably connected to the inner wall of the first sliding groove 213. The bottom of the second slider 216 extends beyond the connecting block 212, and a hook 217 is hinged to the bottom of the second slider 216. When it is necessary to fix aluminum-plastic furniture parts, the second slider 216 is pulled out, allowing it to slide within the first sliding groove 213. When the second slider 216 slides out... This increases the freedom of the hook 217, allowing it to adapt to different aluminum-plastic furniture parts. The anti-detachment component 22 includes a limiting groove 221 on the right side of the connecting rod 211, a limiting hook 222 rotatably connected to the top of the hook 217, and a limiting groove 223 inside the connecting block 212. The width of the limiting groove 221 is the same as the diameter of the limiting hook 222, and the diameters of the limiting groove 223, the limiting hook 222, and the hook 217 are all the same. The elastic element includes a sliding connection. A slider 214 is located on the inner wall of the slide 213. A spring 215 is fixedly connected to the top of the slider 214. The top of the spring 215 is fixedly connected to the slide 213. When the slider 216 presses against the slider 214, the spring 215 will undergo elastic deformation and generate elastic force. By setting the fixing part 2, the aluminum-plastic furniture parts that need to be sprayed can be hooked, preventing them from falling off the device due to shaking during the spraying process, preventing them from colliding with the device and causing damage, thereby reducing economic losses.

[0034] The transport unit 3 includes a limiting component 31, which is installed inside the spray unit 1 for limiting movement; and a power component 32, which is located inside the limiting component 31 for providing power. Under the constraint of the limiting component 31, activating the power component 32 will cause several fixed parts 2 to move within several housings 103. The limiting component 31 includes a second bracket 311 fixedly connected to the inner wall of several first brackets 101. A third bracket 312 is fixedly connected to the inner wall of the second bracket 311. A limiting device is installed inside the second bracket 311. The second bracket 311 is a straight groove block, and is located above several boxes 103. The power assembly 32 includes a motor 321 fixedly connected to the top of the third bracket 312. The output shaft of the motor 321 is fixedly connected to a rotating shaft 322 via a coupling. The rotating shaft 322 passes through the third bracket 312, and its outer wall is rotatably connected to the third bracket 312. A transmission component is provided inside the second bracket 311. Starting the motor 321 will cause its output shaft to drive the transmission component through the rotating shaft 322. The limiting component includes components opened on the support. The slide groove 313 inside the second frame 311 has a connecting groove 314 on its inner wall near the support 312. The left side of the connecting groove 314 extends to the bottom of the support 312. The bottom inner wall of the slide groove 313 has a connecting groove 315, and the bottom of the connecting groove 315 extends to the outside of the support 311. The transmission component includes a sprocket 323 fixedly connected to the outer wall of the rotating shaft 322. The rotating shaft 322 passes through the sprocket 323. A chain 324 is slidably connected to the inner wall of the slide groove 313, and the sprocket 323 meshes with the chain 324. The bottom of the chain 324 is fixedly connected to the connecting rod 211. The first connecting groove 314 is an arc-shaped groove to ensure normal meshing between the sprocket 323 and the chain 324, while the second connecting groove 315 is a straight groove to ensure normal connection between the connecting rod 211 and the chain 324. The operation of the transmission component is restricted by the limiting component. By setting the transport part 3, the fixed part 2 and the aluminum-plastic furniture parts hooked on the fixed part 2 can be transported, so that they can move in the box and be fully sprayed, thereby improving the quality of the product.

[0035] A specific application of this embodiment is as follows: When in use, pull out the hook 217. At this time, the slider 216 will be pulled out along with the hook 217. Then, pass the hook 217 through the hole in the aluminum-plastic furniture part that needs to be sprayed. After passing through, return the hook 217 to its original position. At this time, the top of the slider 216 contacts the slider 214. The limiting hook 222 on the hook 217 can then be engaged in the limiting groove 221. Then, push the hook 217 upwards, causing the slider 216 and the limiting hook 222 to move upwards. Under the action of the slider 214, the spring 215 will generate elastic force. When the spring 215 is fully compressed, rotate the limiting hook 222 so that its top hook aligns with the limiting groove 223. Then release the hook 217, allowing it to be released under the elastic force of the spring 215. When the device slides downwards, the top of the limit hook 222 will engage in the limit groove 223, thus completing the fixation. After fixation, the motor 321 can be started to rotate its output shaft. When the output shaft of the motor 321 rotates, it will drive the sprocket 323 to rotate through the shaft 322. When the sprocket 323 rotates, it will drive the chain 324 to slide in the slide groove 313. When the slide groove 313 rotates, it will drive the fixing part 2 to move around the outline of the bracket 311, thereby driving the aluminum-plastic furniture parts to move. The aluminum-plastic furniture parts will move inside the box 103. During the movement, the spray liquid can be sent from the front end of the connecting pipe 105 to flow in the connecting pipe 105. At this time, the spray liquid will be sprayed out from the spray head 106 through the connecting pipe 104 to spray the aluminum-plastic furniture parts.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A spraying device for aluminum-plastic furniture processing, comprising a plurality of supports (101), characterized in that, Also includes: Spraying section (1), the spraying section (1) is installed on several brackets (101) and is used to spray aluminum-plastic furniture parts; A fixing part (2), wherein a plurality of fixing parts (2) are provided, and all of the plurality of fixing parts (2) are disposed within the spray section (1); and The transport unit (3) is located inside the spray unit (1) and is used to move several fixed units (2); The fixing part (2) includes a sliding hook assembly (21), which is disposed inside the spray part (1) and is used to hook aluminum-plastic furniture parts; as well as Anti-detachment component (22), which is located inside the sliding hook assembly (21), is used to prevent aluminum-plastic furniture parts from falling off the sliding hook assembly (21); The sliding hook assembly (21) includes a connecting rod (211) disposed in the spray section (1). A connecting block (212) is fixedly connected to the bottom of the connecting rod (211). A sliding groove (213) is provided at the bottom of the connecting block (212). An elastic element is disposed in the sliding groove (213). A slider (216) is slidably connected to the inner wall of the sliding groove (213). The bottom of the slider (216) extends to the outside of the connecting block (212). A hook (217) is hinged to the bottom of the slider (216). The elastic element includes a slider (214) that is slidably connected to the inner wall of the slide groove (213). A spring (215) is fixedly connected to the top of the slider (214), and the top of the spring (215) is fixedly connected to the slide groove (213). In this process, aluminum-plastic furniture parts are installed on several fixed parts (2), and then the transport part (3) is activated to move them in the spray part (1). Then the spray part (1) is activated to spray the aluminum-plastic furniture parts. When it is necessary to fix the aluminum-plastic furniture parts, the fixed part (2) is unfolded, and then the aluminum-plastic furniture parts are hooked by the sliding hook assembly (21). Finally, the parts are locked by the anti-detachment assembly (22). When it is necessary to fix the aluminum-plastic furniture parts, the second slider (216) is pulled out so that it slides in the first slide groove (213). When the second slider (216) presses against the first slider (214), the spring (215) will undergo elastic deformation and generate elastic force. When the second slider (216) slides out, the degree of freedom of the storage hook (217) will be increased, so that it can be adapted to different aluminum-plastic furniture parts.

2. The spraying device for aluminum-plastic furniture processing according to claim 1, characterized in that, The spray unit (1) includes two ladders (102) arranged on the left side of several brackets (101). The right side of the two ladders (102) is fixedly connected to the left side of the two brackets (101) located on the left side. Several boxes (103) are fixedly connected inside the several brackets (101). Two connecting pipes (104) are provided on the top of each of the several boxes (103). The connecting pipes (104) extend into the several boxes (103). A connecting pipe (2) (105) is fixedly connected to the top of the several brackets (101). The side of each connecting pipe (104) near the connecting pipe (2) (105) is connected to the connecting pipe (2) (105). A spray head (106) is connected to the bottom of each of the several connecting pipes (104). Among them, several boxes (103) are fixed together by welding, and the several boxes (103) are arranged in an array. The top of each of the boxes (103) is provided with a receiving opening for accommodating the passage of the fixing part (2).

3. A spraying device for aluminum-plastic furniture processing according to claim 2, characterized in that, The transport section (3) includes a limiting component (31) installed inside the spray section (1) for limiting movement; and A power assembly (32) is disposed within a limiting assembly (31) and is used to provide power; Under the restriction of the limiting component (31), the starting power component (32) will drive several fixed parts (2) to move within several boxes (103).

4. A spraying device for aluminum-plastic furniture processing according to claim 3, characterized in that, The anti-detachment component (22) includes a limiting groove 1 (221) opened on the right side of the connecting rod (211), a limiting hook (222) rotatably connected to the top of the storage hook (217), and a limiting groove 2 (223) opened in the connecting block (212). Among them, the width of the first limiting groove (221) is the same as the diameter of the limiting hook (222), and the diameters of the second limiting groove (223), the limiting hook (222), and the placement hook (217) are all the same.

5. A spraying device for aluminum-plastic furniture processing according to claim 4, characterized in that, The limiting component (31) includes a second bracket (311) fixedly connected to the inner wall of a plurality of first brackets (101), a third bracket (312) fixedly connected to the inner wall of the second bracket (311), and a limiting component is provided inside the second bracket (311). Among them, the second bracket (311) is a straight groove block, and the second bracket (311) is located above several boxes (103).

6. A spraying device for aluminum-plastic furniture processing according to claim 5, characterized in that, The power assembly (32) includes a motor (321) fixedly connected to the top of the bracket three (312). The output shaft of the motor (321) is fixedly connected to a rotating shaft (322) via a coupling. The rotating shaft (322) passes through the bracket three (312). The outer wall of the rotating shaft (322) is rotatably connected to the bracket three (312). A transmission component is provided inside the bracket two (311). The starting motor (321) will cause its output shaft to drive the transmission component through the rotating shaft (322), and the operation of the transmission component is restricted by the limiting component.

7. A spraying device for aluminum-plastic furniture processing according to claim 6, characterized in that, The limiting component includes a sliding groove 2 (313) opened in the bracket 2 (311), and a connecting groove 1 (314) is opened on the inner wall of the sliding groove 2 (313) near the bracket 3 (312). The left side of the connecting groove 1 (314) extends to the bottom of the bracket 3 (312). A connecting groove 2 (315) is opened on the bottom inner wall of the sliding groove 2 (313), and the bottom of the connecting groove 2 (315) extends to the outside of the bracket 2 (311). The transmission component includes a sprocket (323) fixedly connected to the outer wall of the rotating shaft (322), the rotating shaft (322) passing through the sprocket (323), a chain (324) slidably connected to the inner wall of the second slide groove (313), the sprocket (323) meshing with the chain (324), and the bottom of the chain (324) being fixedly connected to the connecting rod (211); Among them, the first connecting groove (314) is an arc-shaped groove, which is used to ensure the normal meshing between the sprocket (323) and the chain (324), while the second connecting groove (315) is a straight groove, which is used to ensure the normal connection between the connecting rod (211) and the chain (324).

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